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presenegenin/polygala tenuifolia
Nuoroda įrašoma į mainų sritį
4 rezultatus
[Germplasm resources of Polygala tenuifolia and determination of presenegenin in processing products].
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OBJECTIVE
To research the germplasm resources and the contents of senegenin in processing products of Polygala tenuifolia.
METHODS
The contents of senegenin in wild Polygala tenuifolia and cultivated samples of Polygala tenuifolia were determined by RP-HPLC, and compared.
RESULTS
The contents of
New acylated triterpene saponins from Polygala tenuifolia willd.
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Two new acylated presenegenin glycosides E-onjisaponin H (5) and Z-onjisaponin (6) together with seven known saponins were isolated from the roots of Polygala tenuifolia Willd. Compounds 5 and 6 were obtained as a pair of isomers due to trans and cis-p-methoxycinnamoyl. Their structures were
A novel triterpenoid saponin from Polygala tenuifolia Willd.
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A new triterpenoid saponin, tenuifoside A, was isolated together with three known triterpenoid saponins 2, 3, and 4 from the roots of Polygala tenuifolia Willd. With the help of chemical and spectral analyses (IR, MS, 1D-NMR, and 2D-NMR), the structure of the new saponin was elucidated as
[Studies on chemical constituents in roots of Polygala tenuifolia].
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OBJECTIVE
To study the chemical constituents from the roots of Polygala tenuifolia.
METHODS
Column chromatographic techniques were employed for isolation and purification of chemical constituents of the plant and the structures were elucidated by spectroscopic analysis.
RESULTS
Five chemical
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